Question

I have a few questions regarding HTML5 offline storage, which I could not figure out.

1. Where exactly these files are stored in the Windows? I could not find here:

   C:\Documents and Settings[User Name]\Application Data\Mozilla\Firefox\Profiles\

2. Is there any expiration time, after that browser deletes these files automatically? Or do the files remain forever?

3. What if I change the contents of the page, is there anyway to refresh the refresh the data which is stored offline?

Thanks.

Answer 1

1. I found them in %AppData%/Profiles/<currentprofilename>.default/OfflineCache. I’m using Windows 7.

2. This depends on the expires headers your web server sends for the files in question. It is recommended you set the expires header to one week, but it is up to you, you can make it never expire. Note that the manifest file itself should be set to never be cached.

3. In order to refresh the data you must actually change the manifest file. It is recommended that somewhere in the manifest file you put a comment with the version number, then update it every time you change any of your other files.

Edit: I had answered these questions thinking you meant offline application cache, not local storage.